江苏省高邮市临泽镇一农资销售商近日来电话说,用井冈霉素等药防治水稻稻曲病,要求在水稻破口前1周用药,农民往往不能掌握用药适期。目前当地有些田块的水稻已经破口抽穗,但此前没有能适期用 Recently, a rural agricultural seller in Gaolay City, Jiangsu Province, said by telephone that using Jinggangmycin and other drugs to prevent and control rice false smut requires pesticide administration for 1 week before the rice breach. Farmers often can not grasp the appropriate period of medication. At present, some fields in the area have already had some rice paddies that have not been used properly before